—Must I return the book tomorrow?—No, you ________.You can keep it for three day
题型：不详难度：来源：
—Must I return the book tomorrow?
—No, you ________.You can keep it for three days.| A．mustn"t | B．needn"t | C．can"t | D．may not |
|
答案
| B |
解析
| 考察情态动词用法。A千万不能；B不必；C不可能，不能；D也许不；结合句意可知B正确。句意：—我必须明天归还这本书吗？—不，你不必；你可以再保留三天。 |
举一反三
— I am going to the dentist at 4 o"clock and it is 3：30 now.
— Well, if you ______ leave earlier today, please ask the director for permission. |
— Peter was admitted to a second－class college.
— He ________ a top university, but he was addicted to playing computer games.| A．had entered | B．would enter | C．must have entered | D．could have entered |
|
Don’t play with the dog, Jack, for it ______ be dangerous at times.| A．shall | B．can | C．should | D．must |
|
Walking exercises ____ be boring at times, but on a clear sunny morning nothing could be better．| A．may | B．will | C．must | D．should |
|
—A medical team was sent to Japan by air five hours ago.
—So they ______________ have arrived by now. The flight usually takes four hours or so.| A．might | B．could | C．must | D．need |
|
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